TOP PERFORMANCES offset key 1.3mm — a simple and precise part for urban scooter transmissions. Designed to ensure the positioning and locking of a pulley, sprocket, or variator component on the crankshaft, this offset key of 1.3 mm meets common maintenance and replacement needs.

Ideal for mechanical enthusiasts and workshops, the key is intended for configurations where an offset alignment is required. It integrates into the scooter's drive chain (variator, clutch, output sprocket) and allows for re-establishing the assembly after disassembly or wear.

• Manufacturer reference: 9909180
• Brand: TOP PERFORMANCES
• Designation: Offset key 1.3mm
• Category: Crankshaft
• Universe: Urban

Main compatibilities (examples):

• YAMAHA AEROX R (SA421) – 50 cc (2018)
• MBK OVETTO 2T ONE – 50 cc (2018)
• APRILIA SONIC 50 GP – 50 cc (2015)

Check compatibility with your model before installation and inspect the condition of the crankshaft housing. A practical replacement part to keep your scooter ready for the city.